My biggest regret was selling my 1975 XB GS Fairmont. I sold it in 1998 for $2000 Aussie dollars and at the time I was a little bemused that nobody here really seemed to want these old "Mad Max" cars. About two years after I sold it I noticed the prices for them suddenly started to rise, and nowadays I think it would be at the very least a $50,000 car. It had an FMX auto and a 302 Cleveland (yes a 302 Cleveland motor was a thing in Australia) which I had stroked to a 351 and it went like a rocket. I heard later that the young bloke who bought it lost his license in it a week later, after being caught doing burnouts in it.
I only sold the XB so I could upgrade to a bit of comfort in the form of a Ford NC Fairlane (an Australian luxury car), which was really stupid because I didn't actually need the money and I had space in my yard to keep it.
And over the years I would sometimes have really exciting dreams where I had managed to track the car down and buy it back, then I would wake up really disappointed - you know how much you loved a car when it keeps beckoning to you in a dream!

However, being pragmatic, I love my 1972 Mustang the best out of all three (also had a '70 Mach 1), and I don't think I would have looked to buy one if I still had the XB, so from the loss there was eventually a greater gain.
